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Running hot

Tiny
ROSALYN36
  • MEMBER
  • 2004 CHEVROLET TRAILBLAZER
  • 4.2L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 175 MILES
I replace a thermostat and water pump on my truck. When I drive it it is fine, but if I drive a long period of time it gets hot and I have to pull over to cool down and I can hear the water boiling in the coolant bowl. It leaks out coolant on the passenger side on the ground. Can it be my heater core?
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Sunday, July 21st, 2019 AT 2:01 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

Where is the leak located? Is it from the surge tank cap?

https://www.2carpros.com/articles/engine-overheating-or-running-hot

Pressure test the system to determine the leak.

https://www.2carpros.com/articles/radiator-pressure-test

Roy

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Sunday, July 21st, 2019 AT 4:11 PM
Tiny
ROSALYN36
  • MEMBER
  • 2 POSTS
It is located under the car by the coolant bowl, but you can see it on the side of the right tire on the passenger side. I have a video of it.
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Sunday, July 21st, 2019 AT 8:54 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
That is too general. I cannot see where it is leaking.

You need to do a pressure test as I suggested and look under the hood for the leak. Then post you video for me to view.

Roy
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Monday, July 22nd, 2019 AT 5:21 AM

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